Proportion-Air, Inc.
McCordsville, Indiana Proportion-Air, Inc. is a manufacturer of electronic air pressure regulators and air flow control valves. Our products include pressure reducing regulators, pressure control valves, flow monitor, flow control valve, custom capabilities, pressure sensors, ultrasonic sensors, potentiometers, regulator More...
www.proportionair.com

Cla-Val
Costa Mesa, California Cla-Val produces automatic control valves. We offer different varieties of metals and grades including ductile iron, bronze, aluminum, aluminum bronze, steel, stainless steel, monel and inconel. We serve waterworks distribution systems, fire protection systems, farm irrigation, navy ship systems, gr More...
www.cla-val.com